The Adventures of Jimmy Neutron: Boy Genius Vs. Jimmy Negatron is a 3D action game based on The Adventures of Jimmy Neutron: Boy Genius series.
The evil Jimmy Negatron from another dimension has devised a plan to travel to Retroville by using his dimensional portal to switch places with Jimmy Neutron. Not knowing Jimmy Negatron is waiting for him to activate one of his inventions and so locking on to his signal, Jimmy activates an old time machine during a school trip at the museum in Retroville while trying to impress Cindy. But instead of travelling back in time he is transported to a cage in Jimmy Negatrons underwater lab. Jimmy Negatron explains his plan off taking his place and then transports himself to the museum. Now Jimmy Neutron has to escape and has to find a way to get back to his own dimension.
In the game you take control of Jimmy Neutron while trying to get back to his own dimension and stop the evil plans of Jimmy Negatron. Gameplay includes gathering items while platforming, flying on Jimmys robot dog Goddard, steering a submarine, flying around with a jetpack and rocketship to make gadgets/inventions to get past enemies and obstacles.